All fronts cause storms,drizzle,sleet,snow,etc.

warm fronts cause-light rain or snow

cold fronts cause-heavy rain,hail,thunder storms

occluded fronts causes-rain

stationary fronts cause-continuous rain or snow

here is what happens when a front is over

When a front is formed some times bad weather and sometimes good weather like if a cold air mass collides with a warm air mass it causes snow or rain(cold front)Click on the link is more details on this and after the front is over the temperature is warm then sudden drop in temperature and after is drops slowly(after cold front) http://www.phschool.com/atschool/phsciexp/active_art/weather_fronts/